Launch of SatRef System Services to Government Users Hong Kong Satellite Positioning

1. Launch of SatRef System Services to Government Users Hong Kong Satellite Positioning Reference Station Network System By K.K. CHAN, LS / G (K)

2. Hong Kong Satellite Positioning Reference Station Network (SatRef)

3. AGENDA: • Introduction • The SatRef System • The SatRef Functions • The SatRef Knowledge Sharing Platform - Geodetic Survey Information - Geodetic Survey Knowledge • The Way Forward - Future Developments of SatRef - NTRIPcaster Demo • Q & A

4. The SatRef System Introduction • SatRef is the first CORS system in Hong Kong to cover the whole territory • The GPS data and correctional information of the SatRef improve the accuracy and efficiency of those positioning operations significantly

5. The SatRef System • The SatRef Phase I Contract (Feb 2000 – Dec 2001) • 6 GPS Permanent Reference Stations (GPSRSs) were constructed in the northwest and northern part of the Hong Kong Territory • Control Centre in NPGO

6. Layout Plan of SatRef System

7. GPS Reference Station (Siu Lang Shui)

8. The SatRef System • The SatRef Phase II Contract (Jan 2004 – May 2006) • 6 GPSRSs were constructed in the Lantau Island, Hong Kong Island and eastern part of the territory • Modification of Control Centre • Data Centre at Powerbase Data Centre

9. Layout Plan of SatRef System

10. Shap Sze Heung GPS Reference Station

11. The SatRef System Project Planning and Site Selection Stage: • Planning Permissions for GPSRS * Country Park * Green Belt * Site of Special Scientific Interest

12. Site within Sai Kung Country Park

13. Site within Green Belt and Special Scientific Interest

14. Drainage System

15. Plantation of Hedge

16. Shap Sze Heung GPS Reference Station

17. The SatRef System Extn. of Time Under Construction Stage: • Bad weather(about 8 weeks) • Lightning Protection System(about 8 weeks) • Excavation Permit of LPS(about 8 weeks) • IT Security and Audit(about 18 weeks)

18. Lightning Protection System (LPS)

19. Lightning Protection System (LPS)

20. IT Security Policy & Guidelines • IT Security Policy of Lands D Ver 2.0 • OGCIO Circular 07-2004 (Protection of IS from Security Attacks and Infection by Computer Viruses/Worms) • G3 Internet Security Guidelines • G50 Internet Gateway Security • G54 Information Security Incident Handling Guidelines

21. IT Security Measures • Intrusion Detection Services • IT Security Audit Services • Business Continuity Plan and Disaster Recovery Plan • Information Security Incident Reporting Procedures • No restricted data will be collected • Common look and feel of web pages

22. Intrusion Detection Services Weekly Report (P.1)

23. Intrusion Detection Services Weekly Report (P.2)

24. Intrusion Detection Services Weekly Report (P.3)

25. IT Security Audit Services (Project Schedule)

26. IT Security Audit Services (Audit Report)

27. Common Look & Feel of SatRef Web Pages

28. Common Look & Feel of SatRef Web Pages

29. Summary of SatRef Implementation Feb 2000 – Dec 2001 Phase I Contract May 2001 – Oct 2001 Planning Permission 2002 – 2003 Phase II Tendering Jan 2004 – May 2006 Phase II Contract Oct 2005 – Dec 2005 IDS implementation Dec 2005 – June 2006 IT Security Audit

30. Thank you!

31. The SatRef System • 12 GPS Reference Stations • Data Centre • Control Centre

32. The SatRef Functions • Static GPS Survey (RINEX Data Downloading) • RTK Survey (Real-time Data Delivery) • Automatic GPS Computation • Admin Tools – Utilization Records

33. Break • The SatRef Knowledge Sharing Platform - Geodetic Survey Information - Geodetic Survey Knowledge I & II • The Way Forward - Future Developments of SatRef - NTRIPcaster • Q & A

34. The SatRef Knowledge Sharing Platform • Geodetic Survey Information • Geodetic Survey Knowledge I • Geodetic Survey Knowledge II • Geodetic Survey Practice